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Topic: Assesing voltage drop in high current connections (Read 705 times) previous topic - next topic

permnoob

also as a predominantly automotive guy, I avoid solder connections on things that vibrate, but that is a whole nother topic, I don't want to sidetrack this thread.

zoomkat

Quote
There is nothing "wrong" with the current setup, I am more trying to figure out what is generally accepted as "good enough" in these situations.


That is going to be up to you. if you want lower resistance in the wiring, use larger solid copper wires, or skip the copper and use large pure silver wires/busbars. It is your situation, so you are going to have to make the decision on what is good enough for you.
Consider the daffodil. And while you're doing that, I'll be over here, looking through your stuff.   8)

Docedison

Does the drive gear ratio allow for minimum motor current. Just a random thought...

Doc
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"The solution of every problem is another problem." -Johann Wolfgang von Goethe
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MarkT


Quote
There is nothing "wrong" with the current setup, I am more trying to figure out what is generally accepted as "good enough" in these situations.


That is going to be up to you. if you want lower resistance in the wiring, use larger solid copper wires, or skip the copper and use large pure silver wires/busbars. It is your situation, so you are going to have to make the decision on what is good enough for you.


Silver wire of the same conductivity as copper would be 11% heavier and cost 130 times as much, whereas aluminium wires of the same conductivity would be half the weight and about 40% of the cost of the copper.  Aluminium is the best choice for heavy current wiring and is used heavily in industry for this reason.

Aluminium would take up 70% more volume though.

For the ultimate a cryogenic system and superconducting cable would give zero losses (except for the power needed to chill the liquid helium!)
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